baber/WOPTO huggingface dataset:
Patent GB-350977-A (GB)
Title: Arrangement for improving the quality of the balance in duplex systems in simultaneously operated telephone systems
IPC: B66F7/18
Filed: 1929-12-10
Abstract: 350,977. Superposed telephony and telegraphy. SIEMENS & HALSKE AKT.- GES., Siemensstadt, Berlin.-(Assignees of Eppelin, K. ; 20, Lefevrestrasse, and Nordhusen, H. ; 7, Allensteinerstrasse, both in Berlin.) Dec. 10, 1929, No. 37930. Convention date, Dec. 11, 1928. Void [Published under Sect. 91 of the Acts]. [Class 40 (iv).] In a system of superposed telephony and telegraphy comprising separating filters K, D, a telephone set F, a bridged telegraph transmitting branch S, and a telegraph receiving relay E with four windings 1 .. 4 differentially arranged as shown, the balancing of the bridge is facilitated and the use of a comparatively simple balancing network NL is rendered possible, by the insertion of series resistance elements W1, W2 which may be in the form of ohmic resistances, oscillatory circuits, or chain conductors. Similar series resistance elements are associated with " check-reading apparatus," and with bye-path circuits for passing the telephone currents around telephone repeaters.
Patent GB-1048995-A (GB)
Title: Polyurethane preparations
Inventor: BLOMEYER FRIEDRICH
IPC: C08G18/08
Filed: 1963-09-26
Abstract: A non-cellular polyurethane is produced by mixing an organic polyisocyanate with a polyhydroxyl compound in the presence of a hydrolysable ester of ortho-formic acid or trichloro triethyl phosphite, wherein the water content of the mixture is not greater than 1% by weight. The ester of orthoformic acid may be a lower tri-alkyl ester, e.g. the triethyl ester.  The polyhydroxyl compound may be a polyester, polyether, polythioether, polyacetal or monomeric aliphatic polyol.  Castor oil may also be used.  In Example (1) diphenylmethane 4,41-diisocyanate was added to a mixture of triethylorthoformate, castor oil, propoxylated trimethylol propane, quartz and manganese blue and allowed to react.  The polyurethane was then poured into a mould or applied as a floor covering.  In Example (5) BaSO4, CaCO3 and FeO were added to a mixture of castor oil, blown castor oil and triethylorthoformate. After allowing to stand for 48 hours diphenyl methane 4,41-diisocyanate was added and the lacquer applied to a base (see Division B2).ALSO:Non cellular polyurethanes (prepared by mixing an organic polyisocyanate with a polyhydroxyl compound in the presence of a hydrolysable ester of orthoformic acid or trichloro triethyl phosphite the water content of the mixture being less than 1%) (see Division C3) is applied as a floor covering on to concrete or iron by doctor rollers.
Patent GB-1338297-A (GB)
Title: Rotary drum type continuous refining furnace
IPC: F27D27/00
Filed: 1971-08-13
Abstract: 1338297 Rotary furnaces SUMITOMO METAL INDUSTRIES Ltd 13 Aug 1971 38140/71 Heading F4B A rotary continuous refining furnace comprises an inlet port 6, Fig. 2, at one end, a body of non-circular inside section and a discharging part at the other end having a semicircular discharge trough 9, Fig. 3, concentric with the furnace body and a opening 13 which as the furnace rotates repeatedly dips into the melt and lifts a quantity of it into the trough. The opening 13 may be formed by walls tangential to the trough 9 or radial thereto, or as shown in Fig. 3 one of each. A dam may be provided at the inner end of the trough and there may be a downward step between the furnace inner wall and the space 13. The inner section may be barrel-shaped as shown in Fig. 3, elliptical or polygonal.
Patent GB-1360060-A (GB)
Title: Cryogenic storage dewar
IPC: F17C3/08
Filed: 1971-08-16
Abstract: 1360060 Thermally insulated containers AIR PRODUCTS & CHEMICALS Inc 16 Aug 1971 [16 Dec 1970] 38299/71 Headings F4U and F4H A dewar comprises an inner tank 12 for receiving and storing for transportation a cryogenic fluid e.g. liquid helium, which is supported on trunnions 48, 50 of a low thermally conductive material in spaced relationship from an outer shell 14, the space therebetween being evacuated. A first radiation shield 54 of self-supporting form is mounted between the tank and shell, a second shield 56 between the shield 54 and shell and a conduit 96 vents the tank to atmosphere on filling of the dewar, the conduit contacting a major portion of the surface of the shield 54 for pre-cooling purposes which shield thereafter acts as a large heat sink and a wall 66 forms with a portion of the shield 56 a second storage tank for a second volume of cryogenic fluid, e.g. liquid nitrogen, for thermal insulation purposes.
Patent GB-1035327-A (GB)
Title: Improvements in or relating to printed circuits
IPC: G03F1/90
Filed: 1963-09-30
Abstract: 1,035,327. Printed circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 30, 1963 [Oct. 3, 1962], No. 38360/63. Heading H1R. In a method of making a printed circuit of a desired configuration, a master pattern is produced which comprises a plurality of points and interconnections therebetween corresponding to terminal areas and conductors in the printed circuit, there being sufficient interconnections to include the conductors necessary for a plurality of different circuit configurations; and a break pattern is produced which, when superposed on the master pattern, covers areas on the latter where breaks in conductors are desired; and the two patterns are combined to form the desired circuit in metal on an insulating support. As described, the master pattern is drawn on vellum and reproduced as a transparency; Fig. 2 shows points 32, 34, 36, 38 interconnected by vertical lines 48 and by horizontal lines 46a, 46b, 46c, 46d, additional vertical lines 40, 42, 44 being provided to increase the interpoint connection potential. A break pattern, Fig. 3 (not shown), is prepared comprising a circle 50<SP>1</SP> or other shape, wherever a break in the horizontal or vertical lines is required. The master pattern may be a negative and the break pattern a positive, the two patterns being superposed on a copper-clad insulating board in a photo-etching process to produce a printed circuit, part of which is depicted in Fig. 7 (not shown). Other master patterns may be used, e.g. where points are interconnected only diagonally, and the etch resist may be applied by silk screening or printing. The method may be adapted for a conductor additive process. A plurality of printed circuit boards made according to the invention may be stacked and laminated, interconnection between desired terminal areas in different planes being effected by through-plated holes. The combination of a pattern of disconnected terminal points and a pattern of connections is mentioned in the Specification.
Patent GB-1106051-A (GB)
Title: Formulations of bis (dimethylthiocarbamoyl) disulphide for inhibiting the growth of e.rhusiopathiae
Inventor: HART CHARLES BARRINGTON
IPC: A01N47/26
Filed: 1963-09-30
Abstract: A method for inhibiting the growth of Erysipelothrix rhusiopathiae in a dip or spray wash for domestic animals comprises the addition of bis(dimethylthiocarbamoyl)disulphide to the dip or spray wash.  The pesticides used in the wash may be O,O - diEt - O - (2,4 - di - chlorophenyl) phosphorothioate, 2,3 - p - dioxane - S,S - bis(O,O - diEtphosphorodithioate), O,O - diEt - O - (2 - isoPr - 4 - Me - pyrimidyl - 6) phosphorothioate, O,O - diEt - S - (p - chlorophenylthio) methyl phosphorodithioate, O,O - diEt - O - (3 - Cl - 4 - methyl - coumarin - 7 - yl) phosphorothioate, or O,O - diEt - O - 1 - (2,4 - dichlorophenyl) - 2 - chlorovinyl phosphate.
Patent GB-823285-A (GB)
Title: Improvements in or relating to the production of vinyl chloride
Inventor: BIHAN HENRI LE
IPC: C07C17/25
Filed: 1956-12-18
Abstract: Vinyl chloride is prepared by thermal decomposition of dichlorethane in the vapour phase, the decomposition being carried out in the presence of dry ash-free carbon obtained by washing active carbon firstly with 2N nitric acid at 50-75 DEG  C., and then with water, and thereafter drying the carbon.  The carbon so obtained is free from metallic salts, e.g. iron salts, which catalyse the formation of undesired by-products such as tar.  In an example, 1,2-dichlorethane vapours, at a gauge pressure of 8 atm., are passed through a stainless steel tube containing ash-free active carbon heated to a temperature of 400 DEG  C.  The condensed reaction products are subjected to fractional distillation to separate pure vinyl chloride from untransformed dichlorethane.  The latter is recycled to the pyrolysis zone.  A yield of 99% of vinyl chloride is obtained with a conversion rate of 65 to 70% per pass.  The pyrolysis of 1,1-dichlorethane is referred to.
Patent GB-856802-A (GB)
Title: Position responsive pulse generating device
Inventor: JONES EDWARD MONRAD
IPC: G08C19/26
Filed: 1956-12-19
Abstract: 856,802. Photo-electric position detection. BALDWIN PIANO CO. Dec. 19, 1956, No. 38710/56. Class 40(3). In a device for detecting the position of a turntable 10, light from a source 17 is focused by a magnifying objective 15 on to one of two orthogonally related reflecting surfaces, such as those of a prism 11, mounted eccentrically on the turntable 10 and is reflected thence to focus on a slit 25 covering a photo-cell 21 when the prism is aligned with the optical system to generate a pulse which may be amplified at 30. The slit 25 is adjustable by means of a spring plate 24. Specification 856,185 is referred to.
Patent GB-1065322-A (GB)
Title: Improvements in or relating to tool changing apparatus
IPC: B23Q3/155
Filed: 1963-10-02
Abstract: 1,065,322. Machine tool details. SCULLY-ANTHONY CORPORATION. Oct. 2, 1963 [April 22, 1963], No. 38854/63. Heading B3B. Automatic tool-changing apparatus comprises tool transfer means 60 for moving a tool from the machine spindle 24 to an exchanger member 124 at an interchange position, the exchanger member having means to hold a new tool and transfer it to the transfer means. Parts of the apparatus and the tools are similar to those described in Specifications 1,004,625 and 1,004,626. In operation, a tool is removed from a magazine IV by a gripper 34 which is traversed upwardly on a slideway III. The slideway is rotated through 90 degrees so that the tool can be picked up by a horizontally-movable device 128, the gripper 34 then being moved to an upper position. The device 128, with the tool in one socket 36 of a double-socketed arm 124, is advanced along rods 38, 40 by a motor 48 driving a chain 46. The transfer arm 60 grips the flange of the tool in the spindle 24, withdraws it axially, is rotated to a vertical position and then retracted within a block 54 to place the tool in the empty socket of the arm 124. The arm 124 is then rotated by rack-and-pinion means operated by a fluid pressure device 130 so that the arm 60 can grasp the new tool 28. The flange 30 of the tool is grasped by a pivoted jaw 70 operated by springs which can be released by a fluid pressure piston. The arm 60 is moved axially by a fluid pressure device 90 and is rotated by a fluid-pressure device 104 and rack-and-pinion means. For picking up a tool from the spindle 24, the axial position of the sleeve 56 carrying the arm 60 is determined by a spring-operated plunger engaging a recess 115, Fig. 3. In modifications, the arm 60 may move linearly instead of angularly, the arm 124 may rotate about an axis not parallel to that of the spindle and the device 128 may comprise a shuttle slide and an arm 124 which are separate. Alternatively, the arm 60 may move only angularly and a separate shuttle may extract the tool from the spindle and move it into the arm 60 which may then transfer the tool to a further shuttle or move axially to place the tool in the arm 124. In a further modification, each tool-holder may have a collar 180, Fig. 7A, gripped by the jaws of a bevelled collet 178 engaged by a spring 176 and actuated by a sleeve 172 on a push-rod urged to closing position by springs and released by fluid-pressure. The chuck and its actuating mechanism are contained in a sleeve 144 which can be moved axially by fluid-pressure means to advance the tool so that it can be picked up by the arm 60. In yet another modification, the tool 28<SP>1</SP>, Fig. 8, is extracted from the spindle by jaws 203 on sliding rods 200, 202.
Patent GB-1039333-A (GB)
Title: Improvements in or relating to the production of organotin compounds
Inventor: COATES HAROLD
IPC: C07C17/16
Filed: 1962-10-15
Abstract: The iodine value of an organotin iodide is recovered in the form of an alkyl iodide by reacting an organotin iodide of the general formula RnSnI4- n, wherein R represents a monovalent organic radical and n is 1, 2 or 3, with hydrogen chloride in the presence of an alcohol of the general formula R1OH, wherein R1 is an alkyl or substituted alkyl group (including aralkyl groups) to produce an alkyl iodide of the formula R1I and an organotin chloride of the formula RnSnCl4- n and recovering the alkyl iodide from the reaction mixture.  The hydrogen chloride may be gaseous or in the form of aqueous hydrochloric acid and the reaction is usually performed in a liquid medium which may be provided by use of aqueous hydrochloric acid or an excess of the alcohol reactant. A liquid diluent or solvent may be present in the reaction mixture. It is convenient to employ a reaction temperature of 50 DEG  to 250 DEG  C. and to regulate said temperature to remove alkyl iodide continuously as an azeotrope with alcohol or as a ternary azeotrope with alcohol and water.  Salts, preferably halides, of amphoteric metals, i.e. metals whose oxides are soluble in alkali, may be present in the reaction mixture to catalyse the reaction. In a preferred embodiment the groups R and R1 are identical alkyl or aralkyl groups and the alkyl halides so produced by the process of the invention can be re-used to prepare further quantities of the organotin iodides.
Patent GB-958073-A (GB)
Title: Lined fibrous drums
Inventor: DUFFIN EARLE RYAN
IPC: B65D8/06
Filed: 1961-11-01
Abstract: 958,073. Drums. BOWATER RESEARCH & DEVELOPMENT CO. Ltd. Oct. 18, 1962 [Nov. 1, 1961], No. 39163/61. Heading B8D. A drum body 1 of fibrous material with a plastics lining has a bottom end closed by a disc 3 of fibrous material covered by a preformed disc 6 of plastics material, which has an upstanding peripheral flange 7 heat sealed at 8 to the lining of the drum body. To the peripheral edge of the disc 3 is attached an annulus 4 forming a depending flange, the annulus being also attached to the bottom of the drum by stitching, or by adhesive. The flange 7 may also be formed by crimping the edge of an oversize plastics disc.
Patent GB-1011951-A (GB)
Title: Method of making container stock
IPC: B21B1/38
Filed: 1962-10-16
Abstract: A method of making container stock comprises cold-rolling low-carbon steel strip to a thickness greater than that desired in the finished product, applying a lacquer coating to at least one side of the strip, thermally curing the lacquer coating, and cold rolling the lacquer-coated strip to final gauge, e.g. a reduction of about 50% in the strip thickness.  The coating may be applied in a thickness to result in a coating weight of from 4-11 mg. per square inch.  The strip may be reduced by the first cold-rolling to a thickness of about 0,010 inch and by the second cold-rolling to a thickness of about 0,005 inch.  The lacquer may be a cross-linked vinyl lacquer or an oleo-resinous lacquer.
Patent GB-880154-A (GB)
Title: Improvements in or relating to free-piston internal-combustion engines
IPC: F02B71/00
Filed: 1957-12-17
Abstract: 880,154. Reciprocating generators. JARRET, J. H., and JARRET, J. M. B. Dec. 17, 1957 [Dec. 18, 1956], No. 39279/57. Class 35. [Also in Group XXVII] A free-piston I.C. engine comprises in the Fig. 1 embodiment a piston 6 rigidly connected to magnetic elements 14a, 14b reciprocable in gaps in the second and third parts 11a, 11b of a three-part magnetic circuit the first part 12 of which carries an output coil 17 in which is induced by reciprocation of the elements when the parts 11a, 11b are excited by coils 15a, 15b a voltage, which controls an air or fuel supply valve 21, Fig. 3. The coils 15a, 15b are excited by a D .C . source 16 and are so wound and connected in either series or parallel as to generate mutually opposed fluxes in the first part 12. The block C in Fig. 1 may be the solenoid device of- Fig. 3 wherein the output voltage of the coil 17 is fed to winding terminals 23 to control the position of a spring- biased magnetic core 25 connected by a linkage 26, 27 to the valve 21 which is disposed in the air intake conduit 22 of the fuel supply system, and the arrangement provides that the frequency of the output voltage is used to maintain substantially constant the reciprocation rate of the piston 6. In a modification, Fig. 4, not shown, the output voltage is fed via an electronic variable pulse generator to an electromagnet controlling the needle valve of a fuel injector. In the other embodiment, Fig. 5, the engine comprises two conjugate pistons 37, 38 each connected to respective elements 47, 48 of two electromagnetic systems whose output coils 58a, 58b are interconnected at 59, 60 to cause the two pistons to reciprocate in synchronism. Rigid transmission rods 41, 42 secured to the pistons may drive a load such as a compressor or a mechanical energy converter. The output voltage may also charge a storage battery which may be the source 16. The invention may be combined with the system disclosed in Specification 764,495 which is referred to.
Patent GB-1106710-A (GB)
Title: Improvements in or relating to processes for the manufacture of storage matrices
IPC: H01F41/20
Filed: 1965-09-15
Abstract: The individual memory elements in a magnetic thin film matrix are provided with parallel easy axes of magnetization by a process of manufacture whereby the elements are vaporized on to a carrier substrate in a unidirectional field at a temperature in the range 100 DEG C. to 250 DEG C. and a rate of 0.3A DEG /sec to 60A DEG /sec.  It has been found that for the outer elements of a matrix the easy axes tend to be out of parallelism because the metal atoms being deposited arrive at an oblique angle.  Two different effects cause this rotation of the easy axis and they operate in opposite senses.  By choosing temperature and rate conditions in the ranges given above the two rotational effects can be made to cancel.  In order to lower the coercive and anisotropic field strengths after manufacture the matrix is annealed in a magnetic field at a higher temperature than that use in manufacture.  This field may be parallel to or perpendicular to the magnetic axis.  The metal layer may be Ni Fe alloy.  The substrate may be glass, or it may be aluminium, copper or silver coated with silicon monoxide or silver and silicon monoxide. It may be heated by electric current or radiated heat.  Vapourizing is from a TiC or TiB crucible.
Patent GB-1244390-A (GB)
Title: Crushing and sizing rolls
Inventor: GUNDLACH THEODORE FOELLER
IPC: B02C4/30
Filed: 1969-08-06
Abstract: 1,244,390. Roller-mills. J. M. J. INDUSTRIES Inc. 6 Aug., 1969, No. 39388/69. Heading B2A. A roller-mill for crushing and size-reducing coal comprises a pair of similar rolls 10, 11, Fig. 1. Projecting from a surface 12 of each roll is a plurality of elongate, continuous, tapered, axially-extending teeth 13. Elongate, arcuate ribs 14 extend at right angles from each side of and have the same cross section as each tooth 13. A groove 15 receives one of the continuous teeth 13 of the adjacent coacting roll. The roll pattern is asymmetrical viz. a circumferential line 17 Fig. 2 of ribs 14 is provided at one end of each roll, but a line 18 at the other end is spaced away from that end. The rolls are driven synchronously by gearing.
Patent GB-1429011-A (GB)
Title: Ignition systems for internal combustion engines
IPC: F02P1/08
Filed: 1973-08-23
Abstract: 1429011 Ignition systems ROBERT BOSCH GmbH 23 Aug 1973 [29 Aug 1972] 39972/73 Heading F1B An ignition system for an internal combustion engine comprises an ignition armature 11 which is adapted to co-operate with a magnetic system 13, 14 rotated by the engine to produce ignition energy and has a secondary winding 12b connectable to at least one spark plug 16 and a primary circuit having a semi-conductor element 17 for controlling energization of 9 primary winding 12a, a control electrode of the semi-conductor element being connected by at least one resistor 25 to one terminal of a control winding 24, which is energizable to bias the semi-conductor element into a conductive state, and whose other terminal is connected to the primary circuit and control means 21, 21a is coupled to the control electrode and is operable to drive the semi-conductor element into the non-conductive state at an ignition instant and at least when the primary current is rising the control winding is linked with a varying magnetic flux. As shown in dotted lines the control winding may be wound upon a separate core 30. In a modification (not shown), the control winding is disposed on the armature of a dynamo. The dynamo winding may be connected to a lighting system and form the control winding or the dynamo winding may be connected in series with the control winding. In another modification (not shown) the control winding forms part of a transformer having its primary winding located in the primary circuit of the ignition system. Instead of the ignition transistor 17 a double transistor in a known Darlinton circuit may be employed. The transistor 20 may be replaced by a thyristor or a triac.
Patent GB-977452-A (GB)
Title: Method of treating an underground formation to prevent liquid loss from a hole penetrating the formation
Inventor: EAVENAAR IZAAK
IPC: E21B21/00
Filed: 1963-10-10
Abstract: 977,452. Boring earth etc.; wells. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Oct. 10, 1963, No. 40044/63. Heading E1F. An underground formation is treated to prevent liquid loss from a hole 1 which penetrates a cavity 4 in the formation 2 by injecting through the hole into the formation a suspension having the property of readily depositing particles so that particles are deposited as the suspension flows through the cavity, stopping injection after passage through the cavity is blocked by the particles, and injecting through the hole into the cavity a liquid having a plastering effect. When, during drilling, the bit penetrates the cavity the drill string is removed from the hole, the bit is removed and the string is again run into the hole with its lower end above the entrance 5 of the cavity. If the bit has large sized mud outflow openings, removal of the bit is unnecessary. The suspension which comprises for example oil or water mixed with sand, barite, ilmenite or magnetite is pumped into the cavity down the string. When a mass 7 of particles has been deposited pumping of the suspension is stopped, any particles which have deposited in the bottom of the hole being removed by circulating liquid through the string and the annulus surrounding it. To reduce the number of particles deposited in the hole liquid may be fed down the annulus and up the string immediately after pumping of the suspension or a packer may be set in the hole immediately below the entrance 5. Drilling mud or similar liquid with a plastering effect is used to form the cake 8 sealing off the rest of the cavity and this mud may be used as the liquids for removing particles from the hole.